Journal of Civil, Construction and Environmental Engineering最新文献

{"title":"Effect of Organic Matter on Swell and Undrained Shear Strength of Treated Soils","authors":"S. Abbey, A. Olubanwo, Samson Ngambi, E. Eyo, B. Adeleke","doi":"10.11648/J.JCCEE.20190402.12","DOIUrl":"https://doi.org/10.11648/J.JCCEE.20190402.12","url":null,"abstract":"This paper presents a laboratory and statistical study on swell and undrained shear strength of cemented organic clays blended with eco-friendly (by-product) cementitious materials such as ground granulated blast slag (GGBS) and cement kiln dust (CKD). The presence of organic matter in soils can be very problematic especially during construction of infrastructures such as roads and foundations. Therefore, experimental and statistical investigations are crucial to further understand the effect of organic matter on swell and strength performance of soils treated with by-product materials (GGBS and CKD). Five artificially synthesised organic clays with 0%, 5%, 10%, 15% and 20% organic matters were mixed with 20% cement during the first phase of mixing. In the second phase, cement content was reduced to 4% and blended with 12% GGBS and 4% CKD respectively. All mixed samples were cured up to 56days and subjected to undrained triaxial test and one-dimensional oedometer swell test. The undrained shear strength of the untreated soils decreases from 22.47kPa to 15.6kPa upon increase in organic matter from 0-20%. While the swell increases from 1.17% to 3.83% for the same range of 0-20% organic matter. The results also show improvement on strength and swell upon addition of 20% cement for all investigated samples. For samples treated with 4% cement and inclusion of 12% GGBS and 4% CKD, the treated soils showed better performance in terms of swell potential due to reduction in plasticity compared to the plasticity of soils treated with 20% cement. Undrained shear strength increases from 632kPa to 804.9kPa and from 549.8kPa to 724.4kPa with reduction in organic matter upon addition of 20% CEM and 4% CEM: 12% GGBS: 4% CKD after 56days. The results obtained show that the inclusion of GGBS and CKD reduced swell and increases undrained shear strength irrespective of the percentage of organic materials due to cementation effect. However, results of the statistical studies show that the presence of organic matter influences the extent of performance of the cement, GGBS and CKD treated soils.","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129624274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Swat Based Soil Erosion Modeling of Nashe, Blue Nile Basin, Ethiopia","authors":"Dereje Gizaw Namomsa, Tamene Adugna","doi":"10.11648/J.JCCEE.20190401.14","DOIUrl":"https://doi.org/10.11648/J.JCCEE.20190401.14","url":null,"abstract":"In worldwide, soil erosion effect on the water storage structures is significant for proper management of water resource and its use. The effect of soil erosion, improper management system and lack of suitable soil conservation measures have played important role for food production, and global warming problem. For modeling of soil erosion in Nashe watershed a geographical information system (GIS) version-based SWAT has been used to evaluate sensitivities and prone soil erosion area. To predict spatial & temporal soil erosion distribution stream flow calibration and validation of the soil and water assessment tool were applied using the compatible version of SWATCUP against stream flow for Nashe watershed were taken to estimate model performance on monthly basis. Soil erosion involves all parameters are important for feasible conservation of natural, agricultural and built-up environments. To model the soil erosion the analysis was done on over land runoff, soil loss and sediment yield. The model performance(SWAT) has been evaluated by using statistical parameters of (R2) and (ENS) 0.79&0.75 respectively for calibration and validation results 0.71 and 0.65 for R2 and ENS respectively, the results indicate that the best model to forecast hydrological process of the basin or catchment.","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129208384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Study of Consistency Behavior and Shear Strength of Clayey Soils of Rajshahi District, Bangladesh","authors":"A. Nandy, Noosrat Rashid, M. Ashikuzzaman, Syed Abdul Mofiz","doi":"10.11648/J.JCCEE.20190401.13","DOIUrl":"https://doi.org/10.11648/J.JCCEE.20190401.13","url":null,"abstract":"This paper aims at introducing the Fall Cone Test (FCT) to obtain the shear strength of clayey soils and reveals its applicability by comparing the results obtained from that of Unconfined Compression Test (UCT). Furthermore, the liquid and plastic limit obtained from Casagrande method also compared with that obtained from FCT. For these, soils were collected from Godagari, Tanore, and Nauhata from Rajshahi District (RD). At first, Hydrometer analysis was performed in each soil to know the physical properties. Then Atterberg Limit test was carried out by considering Casagrande Method. After that UCT was shown in each land to find the shear strength of the clay soils. Lastly, FCT was conducted to find out the shear strength, LL and PL. FCT shows a lower amount of liquid and plastic limit than the values measured in the Casagrande Method except plastic limit for Tanore for FCT whereas Godagari shows the higher value of shear strength considering FCT. This research can be concluded with further research should be conducted to ensure its accuracy. On the other hand, it can be drawn which soil have more consistency and shear strength considering others.","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129761282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reliability of Geotechnical Parameters in the Analysis of Ancient Landslides","authors":"H. Pedram","doi":"10.11648/J.JCCEE.20190401.12","DOIUrl":"https://doi.org/10.11648/J.JCCEE.20190401.12","url":null,"abstract":"More than 850 large scale landslides in the two main active seismic zones (Alborz and Zagros) in Iran have been studied over the past nearly four decades. Of these, remedial designs made by the author for major engineering works in the 180 or so landslides encountered in the projects have, to the present, been successful. This work has led me to the conclusion that, regardless of their geotechnical parameters measured on intact samples in the laboratory, the main cause of forming of these landslides has been occurrence of high magnitude recent and historical earthquakes, combined with micro/mega discontinuities existing within the soil/rock masses. In this study, according to the results of geotechnical studies, the stability analysis of ancient landslides in the area of gas transmission lines (IGAT) in Iran, is discussed. Three samples, taken from slip surfaces of ancient landslides of the two main active zones are discussed. The samples were taken from apparently weak soils, but, unexpectedly, they showed good stability strength. The major occurrences of landslides were in the two mentioned active zones (Zagros and Alborz). In the sampling process of the three landslides, samples representative of apparently geotechnically weak rock or poor soil type were the only ones selected for testing and were taken from slip surface/zones with well-defined natural deformation, remolding and slicken siding. Geotechnical and soil shear parameters measured on samples taken from the slip surface showed apparent good results indicating that a landslide should not occur. However this assumption proved to be misleading, for despite these measurements, land sliding did occur. This was especially so in the case of rockslides.","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122931965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on Performance Factors of Public Building Construction Project in Assosa Zone","authors":"Aberham Jibat","doi":"10.11648/j.jccee.20220702.12","DOIUrl":"https://doi.org/10.11648/j.jccee.20220702.12","url":null,"abstract":"","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126978148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Particle Size and Moisture on the Compression Behaviour of D-G-S","authors":"T. Ham, Jin-hwan Lim, Man-Bok Ha","doi":"10.11648/j.jccee.20210606.13","DOIUrl":"https://doi.org/10.11648/j.jccee.20210606.13","url":null,"abstract":"","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115411444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Piezoelectric Joint Sensors Shape to Sensor Response Characteristics by FEM Analysis and Measuring Result","authors":"N. Shimoi, Kazuhisa Nakasho, C. Cuadra","doi":"10.11648/j.jccee.20220701.11","DOIUrl":"https://doi.org/10.11648/j.jccee.20220701.11","url":null,"abstract":"","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124760422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Investigation on Effects of Sisal Fiber Reinforced Concrete on Concrete Properties","authors":"Meti Bezabih Mekonen, Garba Wokjira Fayisa","doi":"10.11648/j.jccee.20220703.11","DOIUrl":"https://doi.org/10.11648/j.jccee.20220703.11","url":null,"abstract":": One of the additional materials for sustainability and strength of concrete is Fiber Reinforced Concrete. Hence, the researcher is attempting to use sisal fiber as an effective and sustainable additive to produce good quality fiber reinforced concrete. This study aimed to examine the effects sisal fiber on the compressive and flexural strength of concrete. As well as it recommends the optimum percentage of sisal fiber percentage. Sisal fibers were brushed, lined up, and cut to obtain a 5cm length of the fiber. To produce a well-mixed fresh concrete, the fiber was added after mixing all concrete ingredients. The compressive strength was tested at the ages of 7, 14","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122932025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Variations on the Final Cost of Selected Public Building Projects in Akanu Ibiam Federal Polytechnic, Unwana from (2010-2020)","authors":"Mbabuike Udochukwu Cyprian, Onoh Felix Emenike, Nnadi Ezekiel Oluwaseun, O. Agara","doi":"10.11648/j.jccee.20210606.12","DOIUrl":"https://doi.org/10.11648/j.jccee.20210606.12","url":null,"abstract":"","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132232336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterizing Traffic Offenses in Addis Ababa, Ethiopia: Case Study in Arada Sub-city","authors":"Gadisa Layo Mosisa, Getu Segni Tulu","doi":"10.11648/j.jccee.20210606.14","DOIUrl":"https://doi.org/10.11648/j.jccee.20210606.14","url":null,"abstract":"","PeriodicalId":262934,"journal":{"name":"Journal of Civil, Construction and Environmental Engineering","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116105481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}